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We are in the process of building a detached garage. The exterior wall coverings will be natural stone and Hardie Plank. The first 3′ of the wall will be stone with a sawn capstone. Above the capstone will be the Hardie Plank. Are there any suggestions on how to properly flash this? I am trying to avoid seeing the flashing on top of the sawn capstone.
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How about copper? An inch or so sticking out below the siding might look ok. If you like the character of older buildings then the weathered copper look, and eventually some verdigris streaks might look very nice against the stone.
I don't know your climate, but if there is not much slope to the capstone you might still get some water up under the flashing if, say, some snow sat on the capstone.
No matter what you do, the wall behind the stone should have a waterproof membrane (such as tar paper) and the stone must have weep holes.
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We are in the process of building a detached garage. The exterior wall coverings will be natural stone and Hardie Plank. The first 3' of the wall will be stone with a sawn capstone. Above the capstone will be the Hardie Plank. Are there any suggestions on how to properly flash this? I am trying to avoid seeing the flashing on top of the sawn capstone.